As an ex-Sony-employee I can tell you that it should be fine but only in certain countries and only if you have an international tourist warranty card stamped in-store and at customs when you left the country of purchase.
Since a lot of Sony products are language/region locked it may have to go back to Japan for servicing anyway - I don't know for sure with the RX1.

Actually, it is even better. I get 5% more off that price if I pay with a Union Pay card. That's the Chinese version of Visa. Japan is going after the Chinese consumer pretty hard. That's $2280 for an RX1.